Fawkes API  Fawkes Development Version
cam_exceptions.cpp
1 
2 /***************************************************************************
3  * cam_exceptions.cpp - Camera-related exceptions
4  *
5  * Created: Sat Apr 14 23:07:12 2007
6  * Copyright 2005-2007 Tim Niemueller [www.niemueller.de]
7  *
8  ****************************************************************************/
9 
10 /* This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2 of the License, or
13  * (at your option) any later version. A runtime exception applies to
14  * this software (see LICENSE.GPL_WRE file mentioned below for details).
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19  * GNU Library General Public License for more details.
20  *
21  * Read the full text in the LICENSE.GPL_WRE file in the doc directory.
22  */
23 
24 #include <fvcams/cam_exceptions.h>
25 
26 using namespace fawkes;
27 
28 namespace firevision {
29 
30 /** @class CameraNotOpenedException <fvcams/cam_exceptions.h>
31  * Camera not opened exception.
32  * Throw this exception if an operations was requested on a camera that is
33  * not possible if the camera has not been properly opened before.
34  */
35 
36 /** Constructor. */
37 CameraNotOpenedException::CameraNotOpenedException() : Exception("Camera not opened")
38 {
39 }
40 
41 /** @class CameraNotStartedException <fvcams/cam_exceptions.h>
42  * Camera not started exception.
43  * Throw this exception if an operations was requested on a camera that is
44  * not possible if the camera has not been properly started before.
45  */
46 
47 /** Constructor. */
49 {
50 }
51 
52 /** @class CaptureException <fvcams/cam_exceptions.h>
53  * Capturing a frame failed.
54  * This exception is thrown if a camera failed to retrieve a new image from
55  * the camera.
56  */
57 
58 /** Constructor.
59  * @param format format of the descriptive message
60  */
61 CaptureException::CaptureException(const char *format, ...) : Exception()
62 {
63  va_list va;
64  va_start(va, format);
65  append_va(format, va);
66  va_end(va);
67 }
68 
69 /** @class UnknownCameraTypeException <fvcams/cam_exceptions.h>
70  * Unknown camera type exception.
71  * Thrown if the requested camera has not been recognized or the needed
72  * libraries were not available at compile time.
73  */
74 
75 /** Constructor.
76  * @param msg optional extra message
77  */
79 : Exception("Unknown camera type")
80 {
81  append(msg);
82 }
83 
84 /** @class UnknownCameraException <fvcams/cam_exceptions.h>
85  * Unknown camera exception.
86  * Thrown if the requested camera is not available.
87  */
88 
89 /** Constructor.
90  * @param msg optional extra message
91  */
92 UnknownCameraException::UnknownCameraException(const char *msg) : Exception("Unknown camera")
93 {
94  append(msg);
95 }
96 
97 /** @class UnknownCameraControlTypeException <fvcams/cam_exceptions.h>
98  * Unknown camera control exception.
99  * Thrown if the requested camera control has not been recognized or the needed
100  * libraries were not available at compile time.
101  */
102 
103 /** Constructor.
104  * @param msg optional extra message
105  */
107 : Exception("Unknown camera control type")
108 {
109  append(msg);
110 }
111 
112 } // end namespace firevision
Base class for exceptions in Fawkes.
Definition: exception.h:36
void append(const char *format,...)
Append messages to the message list.
Definition: exception.cpp:333
void append_va(const char *format, va_list va)
Append messages to the message list.
Definition: exception.cpp:353
CaptureException(const char *format,...)
Constructor.
UnknownCameraControlTypeException(const char *msg=0)
Constructor.
UnknownCameraException(const char *msg=0)
Constructor.
UnknownCameraTypeException(const char *msg=0)
Constructor.
Fawkes library namespace.